General Measure M02 Manual De Usuario página 22

M02 Digital Indicator
A
B
GND
.
.
.
GND is ground of RS485, it can very
m u c h i m p r o v e c o m m u n i c a t i o n
quality via connecting with GND by
A
low-resistance wire when there is a lot
of disturbance in working field .
B
GND
1
A
B
GND